10123321331 has 4 divisors (see below), whose sum is σ = 10124862000. Its totient is φ = 10121780664.

The previous prime is 10123321321. The next prime is 10123321349. The reversal of 10123321331 is 13312332101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13312332101 = 20113 ⋅661877.

It is a cyclic number.

It is not a de Polignac number, because 10123321331 - 2⁶ = 10123321267 is a prime.

It is a super-2 number, since 2×10123321331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123321321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760436 + ... + 773633.

It is an arithmetic number, because the mean of its divisors is an integer number (2531215500).

Almost surely, 2^10123321331 is an apocalyptic number.

10123321331 is a deficient number, since it is larger than the sum of its proper divisors (1540669).

10123321331 is an equidigital number, since it uses as much as digits as its factorization.

10123321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540668.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 10123321331 its reverse (13312332101), we get a palindrome (23435653432).

The spelling of 10123321331 in words is "ten billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred thirty-one".